Bias-switched Down-Conversion Mixer for Flicker Noise Reduction in 28-nm CMOS
Ciocoveanu R, Weigel R, Hagelauer AM, Issakov V (2018)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2018
City/Town: IEEE
Conference Proceedings Title: Texas Symposium on Wireless and Microwave Circuits and Systems
Event location: Waco, Texas
DOI: 10.1109/wmcas.2018.8400634
Abstract
This paper presents a modified Gilbert-cell mixer employing a novel biasing-scheme used to reduce the high Noise Figure, due to inherently high 1/f noise of MOS transistors. Switching the transistor from strong inversion to accumulation interferes with the self-correlation of the physical noisy process, which leads to a reduction in flicker noise. To illustrate this improvement, a comparison with a conventionally biased mixer is carried. Post-layout simulation results show that this mixer achieves a voltage conversion gain of 2.2 dB, a 1 dB compression point of 3 dBm and a 5 dB reduction in noise figure at 50 kHz, while it draws a current of 13 mA from a single 0.9 V supply. The occupied chip area is 0.5x0.94 mm². According to author’s knowledge this is the first time that bias switching technique is applied to a mixer at mm-wave frequencies.
Authors with CRIS profile
Radu Ciocoveanu
Lehrstuhl für Technische Elektronik
Robert Weigel
Lehrstuhl für Technische Elektronik
Amelie Marietta Hagelauer
Lehrstuhl für Technische Elektronik
Involved external institutions
Germany (DE)How to cite
APA:
Ciocoveanu, R., Weigel, R., Hagelauer, A.M., & Issakov, V. (2018). Bias-switched Down-Conversion Mixer for Flicker Noise Reduction in 28-nm CMOS. In Texas Symposium on Wireless and Microwave Circuits and Systems. Waco, Texas, US: IEEE.
MLA:
Ciocoveanu, Radu, et al. "Bias-switched Down-Conversion Mixer for Flicker Noise Reduction in 28-nm CMOS." Proceedings of the Texas Symposium on Wireless and Microwave Circuits and Systems, Waco, Texas IEEE, 2018.
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